Shuttle element FAQ

From: Matson, Robert (ROBERT.D.MATSON@saic.com)
Date: Thu Aug 23 2001 - 17:43:25 PDT

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Hi Walter and list,

> x       for LVLH, is direction of motion
> z       for LVLH, is toward Earth
> y       for LVLH, is other dimension (which direction??)

Given the above definitions of the x- and z-axes in LVLH, the
+y axis points to starboard (right), the -y to port (left).

> x       for M50 , is ??          vernal equinox ??

Yes -- vernal equinox direction.

> y       for M50 , is ??
90-degrees counterclockwise from vernal equinox direction, as
viewed from the north pole.

> z       for M50 , is ??          North pole of equator ??
Yup.

Cheers,
Rob

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